Items showing in a "Open Below" Room type

[mtldesigns]

Maybe I am not seeing something correctly here, being its been a 12 hour work day and its getting late.  

 

For my original customer approval, I put a Chief stairs in the model (indoor and outdoor stairs), did the room below on the second floor to show on the plan set.  Went through the approval process, and one of the comments the clients wants is a custom stair case on the exterior.  I decided, since this was custom and there are still some limitations on Chief stairs to just 3D model my own.  I guess I never paid attention to this before, but I am no longer am seeing these stairs from the second floor (room below) even though I am still using the same layer names.  So I thought, I messed up and I put a Chief stairs in the next to the custom one, and from the second floor, that stair shows, but not the custom.  Interior, I thought I'd test, and sure enough the same thing.  Is there a setting that allows this to happen and a setting to where we can add custom modeling parts?

[DBCooper]

As far as I know, stairs and landings are special and are the only things that will display in an open below room that are on the floor below.  If you made a set of custom stairs using other objects, like polyline solids or symbols or whatever, then they won't show up automatically.  

 

You could use reference display to show them.  Or you could do something else like make a copy of them or even just draw them in using cad.